When you're cycling your hands aren't always free to access maps and get directions. So what happens when you're on a journey and kind of have an idea about where you need to go and where you need to turn off. But then the road changes because of road works. What the?. Panic. Freak out. Having detour/diversion signs mean so much to the touring cyclist who's unfamiliar with the area and not confident about the bike friendly paths. The M4 diversion signage was very well erected around the Parramatta area.